There are several synonyms for the term "field horsetail," which refers to a common plant that is often found in damp areas such as marshes and wetlands. Some common synonyms for this plant include scouring rush, Equisetum arvense, and snake grass. The plant gets its name from its appearance, which resembles the tail of a horse or a snake. It has been used for centuries for various medicinal purposes, and it is also known for its ability to clean and scour metal due to the high levels of silica in its tissue. Regardless of the name used to describe it, this plant is a fascinating and unique part of the natural world.